extends Node2D

var gas_phase: float = 0.0


func configure(_shape_seed: int) -> void:
	queue_redraw()


func extractor_anchor() -> Vector2:
	return Vector2(0.0, -118.0)


func _process(delta: float) -> void:
	gas_phase += delta
	queue_redraw()


func _draw() -> void:
	var rim := PackedVector2Array()
	for i in range(32):
		var angle := TAU * float(i) / 32.0
		rim.append(Vector2(cos(angle) * 118.0, sin(angle) * 118.0))
	NeonDraw.draw_glowing_polygon(self, rim, Color(0.4, 0.78, 1.0), 0.9)
	for row in [-62.0, -28.0, 8.0, 43.0, 73.0]:
		var band := PackedVector2Array()
		var half_width: float = sqrt(maxf(0.0, 118.0 * 118.0 - row * row))
		for i in range(15):
			var x := lerpf(-half_width, half_width, float(i) / 14.0)
			band.append(Vector2(x, row + sin(x * 0.045 + gas_phase * 1.6 + row) * 7.0))
		NeonDraw.draw_glowing_path(self, band, Color(0.85, 0.52, 1.0), 0.75, 0.65)